Brief：

Double concave lenses are concave on both sides and have the same radius of curvature. Bifocal lenses with negative focal lengths are commonly used for beam collimation, increasing (decreasing) focal lengths, or enlarging (decreasing) images.

Applications:

●Vision Corrected

●Laser System

●Optical Instrument

●Lighting Design

Specification:

Note: Other material, size and coating are available upon request.